In the special issue, a select group of experts in dynamical systems have authored  papers which address a broad spectrum of significant problems and current research topics, including Benford's law in dynamical systems; inheritance of shadowing for dynamical semigroups; and generality of blow-up for complex Li-Sinai solutions of the 3D incompressible Navier-Stokes equations from computer simulations.

An extract from the Preface: 

Professor Bunimovich is best known for discovering a fundamental mechanism of chaos in dynamical systems referred to as the mechanism of defocusing. This discovery was a striking and unexpected development not only to mathematicians but also to the physics community. Perhaps the most famous class of systems exhibiting this mechanism is the class of billiard systems, particularly focusing chaotic billiards such as the Bunimovich stadium, Bunimovich flowers, and elliptic flowers. He also introduced the so-called Bunimovich mushrooms, which provide visual examples of billiards exhibiting the coexistence of regular and chaotic dynamics.

Pure and Applied Functional Analysis. (Year). Volume 11, Number 1. Yokohama Publishers. ISSN 2189-3756.

A Special Issue on Dynamical Systems and Related Topics
Dedicated to Professor Leonid Bunimovich on the occasion of his 75th birthday 

In the special issue, a select group of experts in dynamical systems have authored  papers which address a broad spectrum of significant problems and current research topics, including Benford's law in dynamical systems; inheritance of shadowing for dynamical semigroups; and generality of blow-up for complex Li-Sinai solutions of the 3D incompressible Navier-Stokes equations from computer simulations.

An extract from the Preface: 

Professor Bunimovich is best known for discovering a fundamental mechanism of chaos in dynamical systems referred to as the mechanism of defocusing. This discovery was a striking and unexpected development not only to mathematicians but also to the physics community. Perhaps the most famous class of systems exhibiting this mechanism is the class of billiard systems, particularly focusing chaotic billiards such as the Bunimovich stadium, Bunimovich flowers, and elliptic flowers. He also introduced the so-called Bunimovich mushrooms, which provide visual examples of billiards exhibiting the coexistence of regular and chaotic dynamics.

Leonid Bunimovich is a Regents’ Professor in the School of Mathematics.